Hi Chris,
I think you asked me this question when the WG was discussing the proposed non-matching example for Section 4.5. I misheard and misspoke. I did not see your question on IRC then.
The text in Section 4.5 says -
"If a domain-specific intersection processing algorithm is required this will be known from the QNames of the specific assertion types involved in the policy alternatives."
and
"Assertion parameters are not part of the compatibility determination defined herein but may be part of other, domain-specific compatibility processing."
If a domain were to leverage the policy intersection in the framework and specify domain specific intersection, the domain could ONLY specify intersection rules for assertion parameters.
To answer your specific question:
>can a domain define domain-specific processing that
>could state that empty nested policy IS compatible
>with non-empty nested policy?
No. If a domain were to leverage the policy intersection in the framework, the domain could not override the rules for processing nested policy expressions.
We hope this clarifies.
Regards,
Asir S Vedamuthu
Microsoft Corporation
From: public-ws-policy-request@w3.org [mailto:public-ws-policy-request@w3.org] On Behalf Of Christopher B Ferris
Sent: Wednesday, May 16, 2007 10:34 AM
To: public-ws-policy@w3.org
Subject: [NEW ISSUE] 4561 clarification of domain-specific processing
http://www.w3.org/Bugs/Public/show_bug.cgi?id=4561
Title: clarification of domain-specific processing
Description: can a domain define domain-specific processing that could state
that empty nested policy IS compatible with non-empty nested policy? If so,
then I believe the spec should indicate with a MAY.
This was discussed during the telcon on 16 May
http://www.w3.org/2007/05/16-ws-policy-irc
Proposed resolution: suggest clarification text in section 4.5 and
primer/guidelines coverage that also explains this point.
Cheers,
Christopher Ferris
STSM, Software Group Standards Strategy
email: chrisfer@us.ibm.com
blog: http://www.ibm.com/developerworks/blogs/page/chrisferris
phone: +1 508 377 9295